nejQuery

nejQuery is a lightweight, functional JavaScript utility library — inspired by Ramda, Lodash, and FP principles — with a focus on data-last, curried, and composable functions. It offers a rich set of helpers for arrays, strings, numbers, objects, predicates, ADTs, and more.

It's like Ramda with fewer gotchas, Lodash with less weight, and jQuery with... well, no jQuery.

🙃 Why not just use Ramda or Lodash?

Honestly? You should. They're battle-tested, community-loved, and full-featured.

But if you've ever screamed "why is this curried nonsense so weird" or thought Lodash was a bit... much — welcome to nejQuery, the utility library your inner minimalist didn’t know it needed.

✨ Features

• Data-last, curried function signatures
• Immutable and side-effect-aware utilities
• Composable with pipe() and compose()
• Includes support for custom ADTs like Maybe and Result
• Written in plain JavaScript (no build step required)

📦 Installation

npm install nejquery

Or add manually:

<script src="path/to/nejquery.js"></script>

🔧 Usage

Instead of writing imperative code like this:

const nums = [1, 2, 3, 4];
const result = [];

for (let i = 0; i < nums.length; i++) {
  const x = nums[i];
  if (x % 2 === 1) {
    result.push(x + 1);
  }
}

console.log(result); // [2, 4]

...you can write code declaratively like this:

import { pipe, map, filter, add } from 'nejquery'

const nums = [1, 2, 3, 4]

const isOdd = x => x % 2 === 1

// Partially applied functions
const add1 = add(1)
const filterIsOdd = filter(isOdd)
const mapIncrement = map(add1)

// Using Pipe for function composition
const incrementOdds = pipe(filterIsOdd, mapIncrement)

console.log(incrementOdds(nums)) // => [2, 4]

🧰 Categories

nejQuery is organized into the following sections:

• Array functions
• Number functions
• String functions
• Objects
• Utils
• Debugging functions
• Predicates
• Helpers

Full documentation is available in nejquery_docs.md

🧪 ADT Support

Use createADT to build expressive data structures:

const Vehicle = createADT({
  Car: ['make', 'model'],
  Bicycle: ['type'],
  Truck: ['make', 'payloadCapacity']
})

const myVehicle = Vehicle.Car('Toyota', 'Camry')

match(myVehicle, {
  Car: ({make, model}) => console.log(`Car: ${make} ${model}`),
  Bicycle: ({type}) => console.log(`Bicycle: ${type}`),
  Truck: ({make, payloadCapacity}) => console.log(`Truck: ${make}, Payload: ${payloadCapacity}kg`)
})

Includes built-in ADTs: Maybe, Result and matching helpers.

📄 Documentation

All functions are documented with descriptions, examples, and implementations in nejquery_docs.md

🧠 Philosophy

• Keep functions small and pure
• Prioritize readability and composability
• Never mutate inputs
• Empower functional programming in everyday JavaScript

📣 Contributing

Got a function to propose? Open a PR or an issue — contributions are welcome!

Disclaimer: nejQuery is not affiliated with or endorsed by the jQuery Foundation or OpenJS Foundation.
Plus, I have great respect for jQuery. My grandfather used to use it.

📜 License

MIT